Introduction to Computing Module 2

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Questions and Answers

What function does the Control Unit perform in a computer?

It stores data and instructions permanently.

It coordinates and controls all operations inside the computer. (correct)

It serves as the primary input device.

It executes arithmetic operations exclusively.

Which of the following describes the function of the Arithmetic Logic Unit (ALU)?

It controls the input and output devices.

It manages all storage devices.

It generates the output from processing.

It performs arithmetic and logical operations. (correct)

What is a characteristic of Random Access Memory (RAM)?

It holds data temporarily while the computer is operational. (correct)

It retains data when the computer is turned off.

It stores data permanently.

It is non-volatile memory.

Which unit is responsible for entering data and programs into the computer system?

Input Unit Signup and view all the answers

Which component of the CPU performs calculations and logical comparisons?

Arithmetic Logic Unit Signup and view all the answers

What is the prime function of the Output Unit in a computer?

To display or store results from processing. Signup and view all the answers

What type of memory is ROM classified as?

Non-volatile memory. Signup and view all the answers

What significant role do computers play in our daily lives?

They automate various everyday tasks. Signup and view all the answers

What is the primary role of the Storage Unit in a computer system?

To hold data and instructions before and after processing. Signup and view all the answers

Which of the following is NOT identified as a common product that uses computers?

Smartphones Signup and view all the answers

What are the four basic units of a computer system?

Input unit, storage unit, central processing unit, output unit Signup and view all the answers

What major functions do computers perform regardless of their size and make?

Perform mathematical operations, storage, and data retrieval Signup and view all the answers

What unit of the computer is responsible for carrying out mathematical calculations?

Arithmetic Logic Unit (ALU) Signup and view all the answers

Why are computers considered smart and useful machines?

They can store a vast amount of information and perform tasks quickly. Signup and view all the answers

Which is a notable advancement attributed to the use of computers?

Progress in the development of artificial limbs Signup and view all the answers

What type of tasks can computers assist us with?

Quick mathematical operations, creating documents, and multimedia activities Signup and view all the answers

What is the primary function of an e-book reader?

To read digital versions of printed books Signup and view all the answers

Which device is primarily described as being smaller than a tablet but larger than a smartphone?

E-book reader Signup and view all the answers

What feature is common among most handheld computers?

Miniature or specialized keyboards Signup and view all the answers

What distinguishes portable media players from other mobile devices?

They store, organize, and play various forms of digital media Signup and view all the answers

What input method is commonly associated with handheld computers?

Digital pen or stylus Signup and view all the answers

Which of the following devices is primarily used for capturing images digitally?

Digital camera Signup and view all the answers

What functionality do many portable media players include beyond media playback?

Personal information management Signup and view all the answers

What is a notable characteristic of most digital cameras?

They can store images electronically Signup and view all the answers

What is the primary function of the bootstrap loader stored in ROM?

To initiate the computer system upon powering on Signup and view all the answers

Which of the following statements about RAM is true?

RAM is volatile memory with limited storage capacity Signup and view all the answers

What characterizes hard disks as compared to compact disks?

They are made of rigid material and offer permanent storage Signup and view all the answers

In computing, what is the basic unit of measurement for data storage?

Bit Signup and view all the answers

What is the primary difference between Digital Video Disks (DVDs) and Compact Disks (CDs)?

DVDs have a larger storage capacity than CDs Signup and view all the answers

Which of the following best describes the storage characteristics of a Compact Disk (CD)?

CDs have a data storage capacity between 650-700 MB Signup and view all the answers

What is the function of secondary memory in a computer system?

It serves as permanent storage for data and programs Signup and view all the answers

Which of the following statements is incorrect regarding the binary number system?

It is also known as the decimal number system Signup and view all the answers

What is a primary consequence of technology overload?

Feeling distressed when deprived of technology Signup and view all the answers

How can individuals protect themselves from privacy violations?

By being cautious in email messages and on websites Signup and view all the answers

What is one negative impact of computers on the labor force?

Replacement of skills by automation Signup and view all the answers

What does green computing aim to achieve?

Reduce electricity consumption and environmental waste Signup and view all the answers

What is a challenge related to computer manufacturing?

Depletion of natural resources and environmental pollution Signup and view all the answers

How are many personal records vulnerable to privacy violations?

They are often not properly protected Signup and view all the answers

What is a recommended strategy for disposing of old computers?

Donating or properly disposing of them Signup and view all the answers

What is a potential risk for individuals sharing personal information online?

Victimization by criminals Signup and view all the answers

Study Notes

Importance of Computers

Computers play a crucial role in everyday life, impacting the way we live, learn, work, and entertain ourselves.
Invisible computers are integrated into various devices such as cars, washing machines, and microwave ovens, illustrating their pervasive influence.
Key advancements enabled by computers include mobile phones and artificial limbs, alongside conveniences like email.
Development of modern computers began in the 1940s.

Functions of Computers

Computers are multifunctional machines that enhance efficiency in tasks while providing entertainment.
They are utilized in diverse places, including schools, banks, hospitals, and airports.
Common tasks performed include calculating, document creation, drawing, and media playback.

Computer Organization

A computer system is composed of four primary units: input unit, storage unit, central processing unit (CPU), and output unit.
The CPU contains:
- Arithmetic Logic Unit (ALU): Performs all arithmetic and logical operations.
- Control Unit (CU): Manages operations such as input, processing, and output.

Major Operations of Computers

Accepts data/instructions for input.
Stores data and instructions.
Processes data per instructions.
Controls internal operations.
Delivers results as output.

Memory Types

Primary Memory: Divided into RAM and ROM.
- RAM (Random Access Memory): Volatile memory storing data temporarily while the computer is powered on.
- ROM (Read Only Memory): Non-volatile, permanently held instructions critical for booting.
Secondary Memory: Includes hard disks and compact disks (CDs), providing permanent data storage.
- Hard Disk: Writable storage with capacities from 1GB to 80GB+, typically sealed in a protective casing.
- Compact Disk (CD): Portable storage with a capacity of 650-700MB, can be read-only or writable.
- Digital Video Disk (DVD): Larger capacity than CDs, used commonly for media storage.

Measurement Units

Computer storage is measured in bits (binary digits), using a binary number system comprising ones and zeros.

Handheld and Portable Devices

E-book Readers: Devices primarily for reading digital books, often with touch screens and Internet access.
Handheld Computers (UMPC): Small, portable computers used for various mobile tasks, often interfacing wirelessly.
Portable Media Players: Devices for storing and playing music, videos, and photos, often featuring personal management functions.
Digital Cameras: Capture images digitally, with many modern devices integrating these into smartphones.

Technology Overload: Describes the stress felt when deprived of devices, with potential for addiction.
Privacy Violations: Risk of identity theft due to poorly protected digital records.
Public Safety: Risks associated with sharing personal information on the internet, leading to potential victimization.
Impact on Labor Force: Computers increase productivity but also replace certain jobs, necessitating continual worker education.
Environmental Impact: Computer waste contributes to pollution, prompting the need for green computing practices, including recycling and proper disposal.

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Description

This quiz covers Module 2 of Introduction to Computing, focusing on the concept of computer systems. It explores the importance of computers in our daily lives and their impact on various aspects of work, learning, and leisure activities.